Watch.



C. B. GREENBERG.

WATCH.

APPLICATION FILED JUNE 27,1916.

Patented Mar. 13, 1917.

UNITED sTATEs PATENT oEErcE.

CHARLES B. GREENBERG, F VAT'ERBURY, CONNECTICUT.

WATCH.

Application filed June 27, 1916.

To @ZZ er1/0m t may concern.'

lie it known that l, CHARLES B. GREEN- enne, a, citizen of the United States of America, residing at 'Vaterbury, in the county of New Ha ven and State of Connecticut, have invented certain new and useful Improvements in Vatches, of which the following is a specication.

fry invention relates Ato watches and particularly to the winding and setting mechanism of the same.

Figure 1 is a plan or face view of the front plate of a watch and the setting mechanism.

lfig. 2 is an inner face view of the back plate of the watch and the winding mechanism.

liig. 3 is an edge view, partly in section, of the parts shown in Figs. 1 and Fig. il is an elevation, partly in section, of the parts shown in Fig. 2.

F ig. is an elevation partly in section, of the bridge supporting the stem winding device, on line .55 of Fig. 2.

Fig. G is a central, vertical, sectional view through the stem and ratchets.

7 is a plan view of the bridge.

Fig. 8 is an edge view of the bridge.

Fig. 9 is a perspective view of the click and ratchet spring.

1 is the front plate and 9. the back plate, arranged to be secured together by posts and screws, not shown, though their positions are indicated by small circles 3.

Between these plates I locate the bridge 4t, a Hat plate, with lugs 5, 6, 7, adapted to be seated in notches 8, 9, 10 in the front and bach plates 1 and 2. It has also an open recess 11 preferably rabbeted, as shown at 12, to constitute a bearing for the ratchet winding pinion 13, which together with the stein 14 and. the setting pinion 15, is thus sustained, and it will be noted that the form and arranf/einent of the bridge lends itself to easy, rapid and accurate setting of those parts.

17 is the spring for maintaining the stem 1-1 at the desired elevation and holding the click tooth or pawl 19, in engagement with the toothed wheel of the going barrel 20. This spring 17 is recessed at 18, to permit its ready passing on to the shaft of the stem, which is shouldered at just above the upper part of collar 16 for the purpose of providing a bearing for the spring. The latter has, preferably, a slight curve at one Specification of Letters Patent.

Patented Mar. 13, 1917.

Serial No. 106,134.

end, where it engages the bridge et, to give a smooth bearing, and another, at the other end which engages the click 19.

The ratchets 13 and 15 are provided with peripheral teeth 21 and Q2 and clutch teeth 23 and 24.

Having assembled said stein, pinions. clutch and spring 17, the combined d .vice is set into the bridge so that the colla r 16 on the pinion 13, lies above and rests on the rabbeted portion of the bridge and the recess 18 surrounds the stem 111, above collar 1G and below the shoulders on the stem and the spring 17 is placed as shown, so that, bearing against the shoulder 3() on the stem, on one side, and against the bridge on the other side, it holds all these parts from falling apart and they may then be handled as one piece. The bridge thus equipped is set into the plates with great facility, and when these plates are secured by their posts and screws, the parts are held firmly in position, since the plates will prevent lateral movement, and the engagement of the lugs of the bridge and the notches in the plates, together with the spring will hold t-he parts in their desired longitdinal positions.

The back plate is cut away to receive the going barrel and the space closed by a bridge 25, which holds the going barrel in position and furnishes a support for its shaft.

26 is the minute wheel, so called in Watchmakers phraseology because it Works the minute pinion and 27 is the hour wheel. They are geared together by an appropriate pinion 28, and 29 is the winding wheel in engagement with the toothed wheel. of the going barrel 20. Now when it is desired to wind the watch, the crown, not shown, engaging the stem 14, is turned, and acting through the ratchet 13, whose teeth 21 are in engagement with wheel 29, it will turn the going barrel and wind the main spring therein.

lV hen it is desired to set the Watch, the stem is depressed, against the stress of the spring 17, the clutch teeth 23, 24 disengage,

and teeth 22 engage the teeth on the minute wheel, whereupon the turning of the stem will result in a turning of the hands to the desired point. If the tension of spring 17 is so slight that the depression of the stem forces it from engagement with the click, which may or may not occur according to the tension, no harm will ensue, since the stress of the main spring Vwill hold the barrel teeth in engagement with the click at that time.

There are other novelties in this watch such'as the form ot the plates, which being cut away as shown, greatly facilitate the regulation ol the assembled parts by permitA ting 'the operator easy access to, and a full view of the parts to be adjusted. The construction shown and described omits many new unnecessary parts, thus saving material and labor and so facilitates the performance ol the necessarjfY labor that a watch may be made very rapidly and at a 'Very low cost. lt moreover permits the n'iaking ol a very thin watch, which is one ol' the ever sought lor results in this art.

l."liat l claim and desire to ters Patent iszl. ln a watch, the combination with the `winding and setting mechanism and front and bach plates, of a bridge located between the 'front and back plates, lugs on one element and notches on the other whereby said bridge is .supported by said plates, an aperture .in said bridge adapted to receive and secure by Lethold a reciprocable stem, a winding and setting stem mounted to reciprocate in said bridge, and a spring interposed between a shoulder on the stem and the bridge with its stress tending to project the stem head away trom the bridge, all substantially as set forth.

2. ln a watch the combination with the Winding and setting mechanism, of a bridge located between the liront and back plates and adapted to receive and hold a stem, a stem supported in said bridge and provided with a shoulder, and a spring interposed be' twee-n the bridge and the shoulder on the stem and provided with an extension adapted to bear against the click of the winding mechanism and in contact there with.

3. ln a watch, the combination with theT winding and setting mechanism, ol a bridge located between the front and back plates and supported thereby, a winding and setting stem supported in said bridge and provided with a shoulder, and a. spring interposed between the bridge and the shoulder on the stem and proiided with a lateral recess to accommodate the stem, and with an extension to bear against the click of the winding mechanism.

d. ln a watch, the combination ot a bridge, adapted to lit between and be supported by the liront and bach plates and to support astem, and provided with a lateral recess for the reception ot said stem, a winding and setting stem supported in said bridge and provided with a shoulder, a spring with a lateral recess adapted to receive the stem, interposed between the bridge and the shoulder on the stem with its stress tending to lift the stem, and an extension projecting beyond the bringe and adapted to bear against the click ot the winding mechanism.

ln a watch, the combination et a bridge piece, a reciprocable stem extending through said bridge piece and provided with a setting pinion secured to it below the bridge and constituting a stop holding the stem from withdrawal through the bridge in one direction, a shoulder on said stem above the bridge, a. winding pinion sleeved on said stem bearing against the under side or said bridge and provided with a collar setting` against the upper side of said bridge where by the winding pinion is held from reciprocable movement when the stem is reciprocated, and a spring interposed between the shoulder on the stem and the proximate tace of the bridge piece, all substantially as set forth.

In testimony whereof, l have signedmy name to this specification this 24th day oit June, 1916.

CHARLES B. GREENBERG.

Copies of this patent may be obtained for five cents eeen, by addressing; the Commissioner of atents,

Washington, D. 

